Sawmill.



R. H. OBR.

SAWMILL.

APPLICATION FILED JULY 12, 1911.

Patented May 26, 1914.

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R. H. ORB.

SAWMILL.

. APPLIGATION FILED JULY 12, 191i. 1 ,098,292, Patented May 26, 1914.

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ATTORNEYS R.A H. ORB..

SAWMILL.

APPLICATION FILED JULY l2, 1911.

Patented May 26, 1914.

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W/T/VESSES z el UNITED STATES PATENT OFFTCE.

ROBERT HENRY ORB., OF FORT BRAGG, CALIFORNIA.

SAWMILL.

To all whom t may concern:

Be it known that I, ROBERT HENRY ORR,

a citizen of the United States, and a resi' dent of Fort Bragg, in the county of Mendocino, State of California, have invented a new and useful Improvement in Sawmills, of which the following is a specification.

My invention is an improvement in; saw mills, and the object of the invention is to provide a simple, easily operated machine of the character in question.

Tn the drawings: Figure 1 is a side view of the improvement, Fig. 2 is a view at right angles to Fig. 1, Fig. 3 is a section on the line 3-3 of Fig. l, Fig. 4: is an enlarged detail view of the saw and its mounting, Fig. 5 is a view of the connection between the carriage operating shaft and the operating mechanism therefor, with parts broken away, and Fig. 6 is a section.

The present embodiment of the invention comprises a frame composed of longitudinally extending base bars 1 and upriglits 2, one of the said uprights being arranged upon each base bar at approximately the center thereof, and each of the said uprights is braced in one direction against the adjacent base bar by an inclined brace 4. The uprights are connected at their upper ends and intermediate their ends by means of cross bars 5, and each of the said cross bars extends beyond the uprights at each end of the cross bar.

A shaft 6 is journaled in vertical position in the cross bars, at approximately the center of the said bars, and otherV shafts 6a and 6b are journaled parallel with the shaft 6 in the extended ends of the cross bars 5 at the outer sides of the uprights 2. An auxiliary frame is supported by the shafts 6- 6", and the said frame is movable vertically on the said shafts.

The auxiliary frame is composed 0f a plate T, having vertically alined pairs oi laterally extending perforated lugs 8 for receiving the shafts 6 and 6a, and that end of the plate adjacent to the shaft 6b is beveled or inclined as shown in Fig. 2, and the said end is provided with a single bearing 8a journaled on the shaft 6b. Plates 9 and 9a are connected with the shafts 6 and 6a respectively, each plate having an opening at one end through which the shaft extends and the other ends of the said plates are pivoted to a plate 13, and the said plate when Specification of Letters Patent.

Application filed July 12, 1911.

Patented May 26, 1914.

Serial No. 638,156.

in the position of Fig. 3 is extended beyond the plate 9 and beyond the base bar 1 adjacent to the shaft 6b.

A brace is connected in each plate9-9 each of the said braces 10 and 10CL respectively having one of its ends pivoted to the adjacent plate intermediate its ends thereof as indicated at 11 and 11a respectively, and the opposite end of each brace is bent angularly as indicated in Fig. 1 and is provided with an. opening for receiving the adjacent shaft 6a or 6l as the case may be.

A stop 12 in the shape of a collar or rib is arranged on each shaft below the angular portion of the brace, andthe upper lug 8 of each pair of lugs of the plate 7 is arranged directly above the said end of the brace. The braces thus support the outer ends of the plates 9 and 9a respectively and the said plates 9 and 9a may be swung laterally to bring the plate 13 nearer to or farther away from the plate 7.

The saw to be presently described, is mounted on the auxiliary frame, and by swinging the said frame as above mentioned, the saw may be approached to or moved away from the uprights 2. The said saw 22 1s a circular saw and is secured kto one end of a mandrel 19, the said mandrel'being journaled in bearings 18 in the arms 16 of a yoke comprising a body 15, and the said arm 16. A collar 2O is arranged on the mandrel at the opposite end thereof from the saw and a set screw 21 is threaded through the collar and engages the mandrel to prevent displacement of the collar.

A pulley 17 is secured to the mandrel between the bearings 18 of the respective arms and the body 15 of the yoke is provided with a bearing 23, in which is secured one end of a shaft 24. Theopposite end of the shaft 24 is journaled in a bearing 27 at the e'nd of an angular lug 26 integral with the inner edge of the plate 13, before mentioned. The said lug extends upwardly and then laterally outward as shown in Fig. 1, and the bearing is at the end of the outwardly extending portion of the lug. The said plate 13 is doubled as shown in Fig. 2, consisting of upper and lower substantially parallel portionsconnected at each end and intermediate their ends by integral portions 28.

The outer ends of the plates 9 and 9a are -received between the integral connections 28 said plate 13 adjacent to the yoke 15-16 is provided with inwardly extending arms 32, and a cylinder 30 is provided with oppositely extending trunnions or journal pins 31, which are journaled in the said arms. The piston S0 of the said cylinder indicated in dotted lines in ig. 1 has its rod 34 connected with the arm 25, secured to the end of the shaft 24 remote from the bearing 23, and it will. be evident that when the piston is moved longitudinally of the cylinder, that the shaft 24 will be oscillated to swing the saw and the mandrel into the full line position of Fig. 1 or into the dotted line position of the said figure. The motive fluid is supplied to the cylinder 30 in any desired manner to operate the piston to swing the mandrel7 the yoke 5 16, and the SElW.

The shaft 6b before mentioned, is provided with a pulley (i7, which may be connected with a suitable source of power by means of a belt 66, indicated in dotted lines in F ig. 2. The said shaft is provided with a pulley 43 above the pulley 67, and a belt 42 connects the said pulley with the pulley 17 on thel mandrel 19. Pulleys 44 and 45 are journaled on the end of the plate 13 adjacent to the shaft 6b, andthe said plate is provided with a lateral or angular extension 14 atthe said end for supporting the pulley 45. The runs of the belt 42 pass over the respective pulleys 44 and 45 to the pulley 17 and it will be evident that whatever the position of the plate 13 with respect to the shaft 6b, the mandrel will be rotated from the said shaft Gb.

The auxiliary frame may be swung by means of the rack bar 35, one end of which is pivoted to the plate 9 as indicated at 3G and the other end passes through a stirrup 3S having its arms provided with bearings for engaging the shaft 6 and the said arms are slotted as indicated at 39 to receive a bolt 40. A pinion 87 is secured to the shaft 6"L between the arms of tac stirrup, and the bolt 4() passes through the slots 39 to permit the rack bar to move into and out 'of mesh with the pinion. By loosening' the nut, the bolt may be moved toward or from the shaft 6EL t hold the rack bar in mesh with the pinion for to permit the rack bar to be disengaged from the pinion. The auxiliary frame may be swung when the pinion and rack bar are disengaged and may be locked in adjusted position by engaging the rack bar with the pinion.

lt will be understood that the logs or other timber to be sawed are carried past the saw on a carriage 85, of any usual or desired construction, the said carriage moving on the rails 82 secured to the joists 8 arranged transversely of the base bars 1. The carriage track is of any usual or desired construction, and the carriage moves transversely of the uprights 2, being operated by the shaft 57, journaled in the said joists 3. The carriage is connected to the shaft 57 in any usual or desired manner, the said connection being indicated generally by the reference numeral 85a, to be operated in both directions by the said shaft. rlhe carriage and its operating mechanism form no part of the present invention and for this reason are not shown or described more particularly.

The auxiliary frame is as before stated, designed to be raised and lowered on the shaft Ga and 6b and a threaded rod 47 is provided for raising the auxiliary frame, the said rod being journaled in the cross bars 5 between the shafts 6 and 6a. The threaded portion of the rod passes through a nut 48 secured to the plate 7, before mentioned. Near its lower end the said rod 47 is provided with a beveled gear wheel 68. The gear wheel 68 meshes with a similar gear Wheel 69 on a horizontal shaft 70 journaled in bearings 71 on the lower cross bar 5 and provided at its outer end with a hand wheel 72 for rotating the shaft. When the shaft is rotated, the rod 47 will also be rotated, and the auxiliary frame will be raised and lowered depending upon the direction of rotation of the shaft 70. The rod 47 may be also rotated by powe 1, and for this purpose the lower end thereof is connected to a stub shaft S0, by means of a universal joint 57 a, and a disk 50 is secured to the stub shaft. The disk 50 is arranged between other disks 52 and 53, and normally the disk 50 is between the upper edges of the said disks but out of contact therewith. 'lhe said disk 50 may however, be engaged with the face of either disk by swinging the said disk laterally, and an elbow lever composed of arms 74 and 7S arranged at right angles to each other is pivoted at 73 on a cross bar connecting the base bars adjacent to the said disk 50.

As shown in Fig. 6, the bearing 57b for the shaft 57 which operates the carriage is movable laterally, the said bearing having slots 57X at its ends for engagement by pins 57y, the said pins limiting the movement of the bearing.

A lever is pivoted to the adjacent base bar l at the outer end of the arm 74 and the said lever 75 is provided with the usual latch mechanism cooperating with a toothed sector 77 secured to the base bar` for holding the lever in adjusted position. lt will be evident that when the latch mechanism is released, the lever 7 5 may be swung to enthe disk 50 with either disk 52 or 53. The said disks 52 and,y 53 are secured to a shaft journaled transversely of the frame and the said shaft is provided at the end adjacent to the shaft 6h with a friction disk G4, whose periphery engages with the lower face of a friction disk 65 secured to `the lower end of the shaft 6b. It will be evident that when the shaft 6b rotates the shaft 55 will also be rotated, to rotate the disks52 and 53 in the same direction. When the disk 50 is engaged with the disk 53 the rod 47 may be rotated in one direction, While when the said disk is engaged with the disk 52, the rod 47 will be rotated in the oppositeV direction. The shaft is capable of longitudinal movement in its bearings, siiiiiciently to engage and disengage the vbeveled gear wheels 68 and 69. This however, is immaterial, since the said shaft 70 will offer but slight resistance to the rotation of the rod 47.

The shaft 57 which operates the carriage is provided at the end adjacent to the disks 52 and 53with a disk 56. The disk 56 has a hub 5S, and the said hub is slidable on a feather 63 on' the said shaft 57. A lever 61 is pivoted to the outer end of a rod 60, mounted for sliding movement and for oscillating movement in the base bars 1. The hub 58 is provided with oppositely extending journal pins which are received in slots in the arms 59 of a loop extending upwardly from the rod 60. The disk 56 is of less diameter than the distance between the adjacent faces of the disks 52 and 53, so that when the said disk 56 is in position to engage the said disks 52 and 53, that is, when the disk 56 is between t-he said disks, the periphery thereof will not contact with either disk. vided with a loop 61a at its lower end, and the said loop is arranged over a toothed sector 62, secured to the adjacent base bar 1. The body of the sector extends through the loop and the lever may be swung to oscillate the rod 60 or to move the said rod longitudinally. The shaft 57 is connected to the carriage 85 in any desired or usual manner, and is so arranged that the disk 56 may be moved laterally to cause the edge thereof to engage the face of either disk 52 or 53. In the present instance the bearing 57b for the shaft is mounted to slide laterally.

1V hen the disk 56 is in engagement with the disk 52 the shaft 57 will be rotated in one direction and when the said disk 56 is in engagement with the other disk 53, the shaft 57 will be rotated in the opposite direction. The lever 61 is provided with the usual latch mechanism coperating with the toothed sector 62, to hold the lever in adjusted position. lVhen the upper end of the lever 61 is moved toward the frame, the rod 60 will be moved in a direction to cause the disk 56 to engage with the disk 52,

while when the said lever is swung awayl from the frame at its upper end, the rod will be moved in the opposite direction to engage the disk 56 with the disk 53. By swinging the lever 61 in a direction to The lever 61 is however, pro

oscillate the rod 60, the disk 56 may be moved into and out of position to engage the disks 52 and 53.

ln operation, the work, as for instance, a log, is mounted on the carriage 85, which runs on the rails 82. TWith the saw in the full line position of Fig. 1, a horizontal cut will be made in the log from one end to the other as the log passes the saw on the carriage. The 4vertical position of the said horizontal cut depends .upon the elevation ofthe saw, that is, upon'the elevation of the auxiliary frame. By means of the cylinder 30 and the piston therein the saw may be moved into a position at right angles to the full line position of Fig. 1, and on the inner side of the plate 13. When the log is now moved past the saw a vert-ical cut is made, and the said cut may intersect with the inner edge of the horizontal cut to remove a substantially triangular' slab from the log. The saw 22 when in the full line position of Fig. 1, may be moved toward and from the uprights lby swinging the auxiliary frame in a manner to approach the said saw toward or from the uprights. rlhe saw may also take the dotted line position of Fig. 1, and as the plate 13 may be moved near the plate 7, it will be seen that when the saw is in the dotted line position of Fig. l, it may engage the log whatever the position of log between the rails 82. The saw is thus capable of a large variety of adjustment both when in horizontal or vertical posit-ion. The belt 42 does not aifect the swinging movement of the saw, since were the saw reversed from the full line position of Fig. 1, the belt would only have a half turn and the saw would under no conditions, be required in such position. At the most the belt 42 would be given but a quarter turn, and its running would not be interfered with by this position.

It will be understood, that the saw 22 is arranged in the desired position prior to its engagement with the log.l lf for instance, the saw is to be moved nearer to the cent-er of the track formed by the rails 82, the rack bar 35 is disengaged from its pinion, the auxiliary frame is swung to bring the saw to the desired position after which the rack bar is intermeshed with the pinion and locked in such position, thus holding the auxiliary frame from further movement. The angle of the plane of the saw is varied by the cylinder 30 and the piston.

The rack bar 35 and the pinion 37 constitute a holding mechanism for preventing swinging movement of the auxiliary frame. Then it is desired to swing the frame to chang'ethe position of the saw 22 with respect to the carriage 85, the rack bar is released frein the pinion, the auxiliary frame is adjustable manually, and the rack ybar is then engaged with the pinion to lock the auxiliary frame in adjusted position. The saw is adjusted to position before it is engaged with the work.

I claim l. In a device of the character specified, a frame comprising a base, uprights arranged transversely of the base, cross bars connecting the uprights, vertical shafts journaled in the cross bars in spaced parallel relation, an auxiliary frame mounted for vertical sliding movement on the shafts, said. frame comprising a plate arranged transversely of the frame, plates pivoted to the shafts at one end and to the first-named plate at the other enr., means for holding the auxiliary frame in adjusted position, a yoke comprising a body and arms, said arm having alined bearings and the body having a bearing at right angles to the axes of the bearings of the arms, a mandrel journaled in the bearings of the arms and provided at one end with a saw, a shaft secured at one end in the bearing of the body of the yoke and journaled at the other end on the auxiliary frame, means connected with the said shaft for swinging the yoke, and a driving connection between the mandrel and one of the shafts of the cross bars, and means for holding the swinging frame in adjusted position.

2. In a device of the character specified, a supporting frame, shafts journaled in vertical position on the frame, an auxiliary frame mounted for vertical sliding movement on the shafts, means for raising and lowering the auxiliary frame, a yoke comprising a body and arms, the arms having alined bearings, a mandrel journaled in the bearings and provided at one end with a saw, the body of the yoke having a bearing at right angles to the bearings of the arms, a shaft secured at one end in the said bearing of the body and j ournaled on the auxiliary frame at the other end, means in connection with the said shaft for rotating the same, said frame being mounted to permit the yoke to be swung toward or from the supporting shafts, and means for holding the said frame in adjusted position.

3. In a device of the character specified, a main frame, a shaft journaled vertically on the frame, an auxiliary frame mounted to swing on the shaft, a mandrel pivotally connected with the auxiliarv frame on an axis at right angles to the mandrel, a saw on the mandrel, means for holding the auxiliary frame from swinging movement on the shaft, means for rotating the mandrel,

a threaded rod journaled in vertical position on the main frame, a nut on the auxiliary frame engaging the rod, and means for rotating the rod in either direction to raise or lower the auxiliary frame.

a. In a device of the character specified, a main frame, a shaft journaled vertically on the frame, an auxiliary frame mounted to swing on the shaft, a mandrel pivotally connected with the auxiliary frame on an axis at right angles to the mandrel, a saw on the mandrel, means for holding the aux- .iliary frame from swinging movement on the shaft, said means comprising a rack bar pivoted to the frame, a fixed shaft on the main frame, a pinion secured to the power shaft and engaging the rack bar, releasable means for clamping the rack bar in engagement with the pinion to hold the rack bar from movement, and a connection between the power shaft and the mandrel for rotating the saw.

5. In a device of the character specified, a main frame, a shaft journaled in vertical position on the frame, an auxiliary frame mounted to swing on the shaft, means for moving the said frame vertically in either direction on the shaft, means for locking the frame from swinging movement in either direction on the shaft, a yoke comprising a body and arms, a mandrel journaled in the frame, a bolt pivotally connecting the body of the yoke to the auxiliary frame, said bolt being rigid with the yoke and at right angles to the mandrel, a lateral arm on the bolt, and fluid operated means engaging the arm for swinging the yoke.

G. In a device of the character specified, a main frame, a shaft arranged in vertical position on the frame, an auxiliary frame mounted for swinging movement laterally with respect to the shaft and for sliding movement vertically on the shaft, means for moving the said frame vertically, means for locking the said 'frame from lateral swinging movement and for holding the said frame in adjusted position, a mandrel pivotally connected with the auxiliary frame on an axis at right angles to the mandrel, a circular saw on the mandrel, means for swinging the mandrel on its pivotal connection, a power shaft journaled on the frame, and a driving connection between the power shaft and the mandrel.

RUBIERT HENRY OBR. -Witnesses Crus. E. GORDON, T. H. SMITH.

Copies of this patent may be obtained for ve cents each, by addressing the Gommissoner of Patents. Washington, D. C. 

